﻿<!DOCTYPE html>

<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="utf-8" />
    <title></title>
</head>
<body>
    <script>
        // 1. 遍历数组，直接遍历
        let arr = ['张飞', '牛肉', 22, true];
        console.log(arr[0]);
        console.log(arr[1]);
        console.log(arr[2]);
        console.log(arr[3]);

        // 2. for 循环，遍历索引号
        for (let i = 0; i < 4; i++) {
            // console.log(i);
            console.log(arr[i]);
        }
        // 3. 数组的长度作为计数器
        for (let i = 0; i < arr.length; i++) {
            console.log(arr[i]);
        }
    </script>
</body>
</html>